According to relativity theory, you can experience a longer youth when you
A) are near a black hole.
B) are near a very large gravitational field.
C) travel at nearly the speed of light.
D) all of the above
E) none of the above
Answer: E
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Constant Acceleration Kinematics: An auto accelerates forward from 7.0 m/s at a uniform 0.71 m/s2. It travels a distance of 1.033 km while accelerating.(a) How fast is the auto moving just as it is traveled the 1.033 km?(b) How many seconds did it take to travel the 1.033 km?
Fill in the blank(s) with the appropriate word(s).
A violation of the second law of thermodynamics would occur if
a. a ball lying on the ground started to bounce. b. transfer of energy by heat moved energy from an object at low temperature to an object at a higher temperature. c. a motion picture was run backwards through the projector. d. any of the above occurred. e. (a) or (b) occurred, but not (c).
The chromosphere of the Sun
a. is hotter than the photosphere. b. appears yellow-white in color during total solar eclipse. c. is the visible surface of the Sun. d. produces an absorption spectrum. e. all of the others.
What would happen to Earth if we somehow moved our planet to the orbit of Venus?
A) Earth would suffer a runaway greenhouse effect and become as hot as or hotter than Venus. B) Temperatures would rise only slightly, but enough to melt the polar caps. C) The fact that we have oceans would moderate the temperature change because of moving our planet, so temperature would hardly change at all. D) Being so much closer to the Sun would almost immediately cause the surface of Earth to melt, and all our cities would then be destroyed by the hot lava.